SF patch #682514, mmapmodule.c write fix for LP64 executables
SF patch #682514, mmapmodule.c write fix for LP64 executables

Make length an int so we get the right value from
PyArg_ParseTuple(args, "s#", &str, &length)

Will backport.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator